First three digits · Arizona
ZIP Codes Starting with
24 ZIP codes start with 855, sorted at the Phoenix, AZ (SCF 852) sectional center (USPS labeling list L005, effective October 1, 2026) in Arizona: 21 residential ZIP codes across 4 counties and 3 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 855 mean?
The first digit, 8, is one of ten national areas (Arizona, Colorado, Idaho, New Mexico, Nevada, Utah and Wyoming). The first three, 855, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 855 to the Phoenix, AZ (SCF 852) facility. The last two digits pick the delivery area. By residents, the largest town names among the 855 ZIP codes are Payson, Safford, Globe, Thatcher, San Carlos and Pima.
The same facility sorts 8 prefixes, 372 ZIP codes in all: 850, 851, 852, 853, 855, 859, 860, 863.
Where are the 855 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 855
| County | ||||||
|---|---|---|---|---|---|---|
| 85501 | Globe | Gila County | 12,395 | 23 | $62k | $164k |
| 85502 | Globe | Gila County | PO Box or unique | – | – | – |
| 85530 | Bylas | Graham County | 1,967 | 5 | $39k | $23k |
| 85531 | Central | Graham County | 657 | 147 | $97k | $480k |
| 85532 | Claypool | Gila County | 331 | 1,484 | $74k | $145k |
| 85533 | Clifton | Greenlee County | 2,607 | 3 | $63k | – |
| 85534 | Duncan | Greenlee County | 2,672 | 7 | $76k | $168k |
| 85535 | Eden | Graham County | 42 | 11 | – | – |
| 85536 | Fort Thomas | Graham County | 355 | 2 | $105k | $157k |
| 85539 | Miami | Gila County | 3,386 | 44 | $48k | $138k |
| 85540 | Morenci | Greenlee County | 3,992 | 39 | $78k | – |
| 85541 | Payson | Gila County | 23,382 | 29 | $66k | $361k |
| 85542 | Peridot | Graham County | 2,885 | 11 | $29k | $32k |
| 85543 | Pima | Graham County | 4,868 | 13 | $92k | $265k |
| 85544 | Pine | Gila County | 2,834 | 39 | $60k | $419k |
| 85545 | Roosevelt | Maricopa County | 604 | 2 | $54k | $190k |
| 85546 | Safford | Graham County | 20,809 | 30 | $62k | $200k |
| 85547 | Payson | Gila County | PO Box or unique | – | – | – |
| 85548 | Safford | Graham County | PO Box or unique | – | – | – |
| 85550 | San Carlos | Gila County | 5,696 | 13 | $52k | $66k |
| 85551 | Solomon | Graham County | 361 | 14 | $76k | – |
| 85552 | Thatcher | Graham County | 6,861 | 235 | $89k | $291k |
| 85553 | Tonto Basin | Gila County | 1,755 | 6 | $51k | $269k |
| 85554 | Young | Gila County | 309 | 0 | – | $247k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.